期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 27, 期 9, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/27/9/095701
关键词
Andreev bound state; ac driven superconducting junction; charge imbalance
资金
- Nanosciences Foundation in Grenoble
- EU-FP7 Marie Curie IRG
- [ANR-11-JS04-003-01]
- [ANR-12-BS04-0016-03]
Motivated by recent experimental research, we study a superconducting constriction subject to a dc and ac phase bias. We consider the processes whereby the ac drive promotes one quasiparticle from an Andreev bound state to a delocalized state outside the superconducting gap. We demonstrate that with these processes one can control the population of the Andreev bound states in the constriction. We stress an interesting charge asymmetry of these processes that may produce a charge imbalance of accumulated quasiparticles, which depends on the phase.
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